5.2 Grammar【练习】-2022-2023学年八年级英语下册同步精品课堂（沪教牛津版）

Unit 5 Grammar 基础篇 一、基础夯实 1）It is adj. for/of to do sth. 它们的意思分别是是___________________/______________________. 此结构中，如果表示人性格特征，品质的形容词用介词_____________. 如果表示事物属性的形容词介词用________________. 点对点练习 1请将形容词分类 kind important nice polite clever lazy careful necessary difficult easy careless interesting foolish possible exiting impolite cruel stupid dangerous hard (1) 修饰sb. 与of 搭配的形容词有_________________________________________________________ _________________________________________________________. (2)修饰to do sth. 与for搭配的形容词有：___________________________________________________. 二、选择for或of填空。 1. It is possible _______ him to get there on time. 2 It was silly ________ you to leave the keys at home. 3 Is it important _________ us to learn a foreign language? 4 It was nice _________ her to give the seat to an old man. 5 It was brave _________ him to save the girl. 6 It is difficult _________ such a little boy to run fast. 7 Is it necessary ________ all of us to go there? 8 It was kind _________ you to help those poor children. 9 It was impolite _______ him to leave without saying goodbye. 10 Isn’t it cruel ________ you to kill the bird? 【答案】1.for 2.of 3.for 4.of 5.of 6.for 7.for 8.of 9.of 10.of 2）adj + enough + to do （1）enough…to do sth. “有足够的……做某事”。例如： I don’t have enough time to eat lunch. 我没有足够的时间吃午饭。 （2）…enough to do…可以同too…to…或so…that…结构互相转换。例如： He isn’t old enough to go to school. = He is too young to go to school. = He is so young that he can’t go to school. 他太小而不能上学。 点对点练习 1.As teenagers, we are ______to help with housework. We can help wash the dishes and wash our clothes. A. enough young                B. enough old                C. old enough                D. young enough 【解析】C句意： 作为青少年，我们足够大了可以帮助做家务。我们可以帮忙洗碗和洗衣服。enough修饰形容词，位于形容词后，故排除A和B选项，根据 We can help wash the dishes and wash our clothes，可知能帮助做家务是年龄足够大了，old，年老的，故选C。 2. We don’t have ______ to buy this sweater, th